12127042225 has 48 divisors (see below), whose sum is σ = 16424591616. Its totient is φ = 8846720000.

The previous prime is 12127042223. The next prime is 12127042237. The reversal of 12127042225 is 52224072121.

It is not a de Polignac number, because 12127042225 - 2¹ = 12127042223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12127042193 and 12127042202.

It is not an unprimeable number, because it can be changed into a prime (12127042223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2014470 + ... + 2020480.

It is an arithmetic number, because the mean of its divisors is an integer number (342178992).

Almost surely, 2^12127042225 is an apocalyptic number.

It is an amenable number.

12127042225 is a deficient number, since it is larger than the sum of its proper divisors (4297549391).

12127042225 is a wasteful number, since it uses less digits than its factorization.

12127042225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The spelling of 12127042225 in words is "twelve billion, one hundred twenty-seven million, forty-two thousand, two hundred twenty-five".